* '''Size: <span style="color:#ff0000">???x???</span> mm'''
* Big mainboard, old Gate Array with cooling plate and with VCC2; supplied from VCC via two 12 ohm resistors, R138 and R139, which are seen (with white coating) near the cooling plate.
[[File:CPC464 Z70100 Tomdalby.jpg|200px|left]]
* '''Board: PT NO Z70100, without any "MCnnnn" code, Copyright 1983'''
* Original version. Big mainboard, old Gate Array (with cooling plate). Real wires going to keyboard.
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